Alectromancy

Divination by a cock. Draw a circle, and write in
succession round it the letters of the alphabet, on each of which lay a
grain of corn. Then put a cock in the centre of the circle, and watch
what grains he eats. The letters will prognosticate the answer.
Libanius and Jamblicus thus discovered who was to succeed the emperor
Valens. The cock ate the grains over the letters t, h, e, o, d = Theod
[orus]. Greek alector, cock; marteia, divination.